摘要
通过自行设计的模具,采用化学发泡法制备聚丙烯(PP)/纳米二氧化硅(nano-SiO2)与高抗冲聚苯乙烯(HIPS)/nano-SiO2微发泡复合材料。研究释压量对微发泡聚烯烃复合材料发泡行为的影响规律。结果显示:2种聚烯烃/nano-SiO2微发泡复合材料的泡孔平均直径、尺寸分散度,随着释压量的增大先减小后增大;泡孔密度则相反,随释压量的增大先增大后减小。在释压量为12%时,PP/nano-SiO2与HIPS/nano-SiO2的发泡效果最好。
PP/nano-SiO2 and HIPS/nano-SiO2 micro-foaming composites were prepared by use of chemical foaming method with own designed mold.The effects of pressure release volume on the foaming behavior of the polyolefin composites were studied.The results show that the cell average diameter,cell size dispersion of these two polyolefin / nano-SiO2micro-foaming composites first raise and then decrease with the increase of pressure release volume,and the variation of cell density is opposite.When the pressure release volume is 12%,the foaming effect of PP/nano-SiO22and HIPS/nano-SiO2 is best.
出处
《现代塑料加工应用》
CAS
北大核心
2014年第1期13-16,共4页
Modern Plastics Processing and Applications
基金
黔科合重大专项字(2012)6023
关键词
聚丙烯
高抗冲聚苯乙烯
聚烯烃复合材料
纳米二氧化硅
释压量
发泡行为
polypropylene
high impact polystyrene
polyolefin composites
nano-silica
pressure release volume
foaming behavior
